Wiper Motor: Testing and Inspection

Wiper Motor Alternating Park Position Function, Deactivating

Special tools, testers and auxiliary items required

• Vehicle Diagnostic, Testing and Information System (VAS 5051A)

• Diagnostic cable (VAS 5051/6A)

Windshield wiper system is equipped with APP function (Alternating Park Position).

The APP function causes the wiper at every second shut off to move upward slightly after reaching the lowest position.

To install the motor crank on the wiper motor, it is necessary to shut off the motor in the lowest park position. This is attained by deactivating the APP function (code Wiper Motor Control Module (J400) ).

• An activation of APP function is not possible.

• APP function is automatically activated after 100 wiping cycles. This applies to wiper motors in which the APP function was deactivated as well as for new wiper motors.

- Connect the (VAS 5051A).

- Select "Guided Fault Finding" in the (VAS 5051A).

- Using the "Go To" button, select "Functions/Component selection" and the following menu options in sequence:

• Body

• Electrical Equipment

• 01 - On Board Diagnostic (OBD) capable systems

• Vehicle electrical system control module

• Functions

• Coding control module for wiper electronics/deactivating APP